Abstract
Ventilation of an indoor swimming pool is a very energy consuming process. This is a result of, among other things the required high value of the ventilation air volume flow rate, calculated on the basis of the moisture gains in the facility. The total energy consumption consists of the heat required to heat this air and the electricity needed to transport it. It is possible to reduce the ventilation air volume flow rate by assuming the correct value of specific humidity of the supply and indoor air, but then a deterioration of thermal-moisture conditions in the building can be expected. The aim of this paper was to examine how the reduction of the supply air volume flow rate affects the energy consumption for indoor swimming pool ventilation. It was also checked how this consumption can be reduced by using two-stage heat recovery in the air handling unit. Multi-variant simulations of energy consumption for indoor swimming pool ventilation were carried out using the IDA ICE software for day and night operation of the swimming pool throughout the year. The results of the research proved that reduction of the supply air volume flow rate resulted in the lower energy expenditure on ventilation. The variant with additional local air supply to the lifeguard zone was also analysed, which caused only a slight increase in energy demand for ventilation.
Highlights
IntroductionIndoor swimming pools are building facilities that, during their operation, are characterized by a much higher annual energy consumption (in relation to their surface area) compared to other sports and large-scale facilities
Indoor swimming pools are building facilities that, during their operation, are characterized by a much higher annual energy consumption compared to other sports and large-scale facilities
In the case of ventilation systems, achieving rational energy consumption is possible as a result of maintaining appropriate parameters of air and pool water, appropriate organization of air exchange, the use of ventilation devices with high energy efficiency and using renewable energy, by recovering heat from the exhaust air, using ventilation systems with variable air volume flow rate enabling adjustment of their operation to the conditions currently prevailing in the facility and equipping the ventilation system with automatic regulation and control systems
Summary
Indoor swimming pools are building facilities that, during their operation, are characterized by a much higher annual energy consumption (in relation to their surface area) compared to other sports and large-scale facilities. This is mainly due to the need to supply a significant amount of heat for water heating, domestic hot water preparation, ventilation/air heating systems as well as electricity for lighting and for auxiliary devices operation. In the case of ventilation systems, achieving rational energy consumption is possible as a result of maintaining appropriate parameters of air and pool water, appropriate organization of air exchange, the use of ventilation devices with high energy efficiency and using renewable energy, by recovering heat from the exhaust air, using ventilation systems with variable air volume flow rate enabling adjustment of their operation to the conditions currently prevailing in the facility and equipping the ventilation system with automatic regulation and control systems
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